The Online Books Page

Books by James L. Barker:

Books in the extended shelves:

• Barker, James L., 1936-: Bacteriological water quality of Tulpehocken Creek basin, Berks and Lebanon Counties, Pennsylvania (Dept. of the Interior, Geological Survey, Water Resources Division ;, 1978), also by United States. Army. Corps of Engineers. Philadelphia District, Geological Survey (U.S.). Water Resources Division, and Geological Survey (U.S.) (page images at HathiTrust)
• Barker, James L., 1936-: Effects of acidic precipitation on the water quality of streams in the Laurel Hill area, Somerset County, Pennsylvania, 1983-86 (Dept. of the Interior, U.S. Geological Survey ;, 1990), also by Emitt C. Witt, Geological Survey (U.S.), and United States Environmental Protection Agency (page images at HathiTrust)
• Barker, James L., 1936-: Temporal changes in sulfate, chloride, and sodium concentrations in four eastern Pennsylvania streams (U.S. Geological Survey ;, 1986), also by Geological Survey (U.S.) (page images at HathiTrust)
• Barker, James L., 1936-: Water-quality assessment of Francis E. Walter reservoir, Luzerne and Carbon Counties, Pennsylvania (U.S. Geological Survey ;, 1983), also by Geological Survey (U.S.) and United States. Army. Corps of Engineers. Philadelphia District (page images at HathiTrust)
• Barker, James L., 1936-: Water quality of the Upper West Branch Susquehanna River and tributary streams between Curwensville and Renovo, Pennsylvania, May and July 1984 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1993), also by Robert A. Hainly and Geological Survey (U.S.) (page images at HathiTrust)
• Barker, James L., 1936-: Water quality of the West Branch Lackawaxen River and limnology of Prompton Lake, Wayne County, Pennsylvania, October 1986 through September 1987 (Dept. of the Interior, U.S. Geological Survey ;, 1989), also by Geological Survey (U.S.) and United States. Army. Corps of Engineers. Philadelphia District (page images at HathiTrust)

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